body{
    margin: auto;
}
.header{
    position: relative;
    height: 100px;
    /* border: 1px solid red; */
    /* display: none; */
}
.container{
 
    width: 1226px;
    /* border: 1px solid green; */
    /* height: 100px; */
    /* 技巧 */
    margin: auto;
    
    /* display: none; */
   

}

.header-log img{
    width: 56px;
    height: 56px;
    /* background-color: yellow; */
}

.header-log{
    margin-top: 22px;
    margin-bottom: 22px;

    float: left;
  
}
.header-nav{
    width: 850px;
    height: 100px;
    /* border: 1px solid red; */
    float: left;
}

.header-search{
    /* border: 1px solid red; */
    width: 296px;
    height: 100px;
    float: right;
}
.header-nav ul{
    /* 清除列表的样式 */
    list-style: none;
    padding-top: 10px;
    padding-left: 170px;
    
}
.header-nav a{
    display: block;
    text-decoration: none;
    color: #333;
    padding: 10px;
}
.header-nav>ul>li{
    float: left;
}

.search{
    display: flex;
    height: 100px;
    /* align-content: center; */
}

.item1{
    align-self: center;
    /* margin-left: -2px; */
}

.item2{
    align-self: center;
}

.item1 input{
    width: 223px;
    height: 48px;
    /* border: 1px solid orangered; */
    border: 1px solid #e0e0e0;
}

.item2 input{
    height: 52px;
    border-radius: 1;
    width: 50px;
    outline: 0;
    border:1px solid #e0e0e0;
    background-color: white;
    margin-left: -1px;
    transition: background-color 1s;
}

.item2 input:hover{
    background-color: orangered;
    color: white;
}